Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optics and Spectroscopy

The effect of self-saturation in unidirectional-wave spectroscopy of nondegenerate transitions

Э. Г. Сапрыкин, А. А. Черненко

Published Jul 1, 2017• 1 citation
Publisher

Abstract

Specific manifestations of the effect of self-saturation in unidirectional-wave spectroscopy compared with spectroscopy of counterpropagating waves have been identified. The possibility of direct measurement of the rates of the stimulated transfer caused by its own spontaneous emission is shown for spectroscopy of unidirectional waves.
DOI
10.1134/s0030400x17070220

Related papers

Effects of Saturation and Self-Saturation in Unidirectional-Wave Spectroscopy of Transition between Levels with a Total Moment of J = 1

Э. Г. Сапрыкин, А. А. Черненко

Abstract Nonlinear absorption of a probe field in a system of degenerate levels of an atom characterized by a total moment of J = 1 in unidirectional waves is studied analytically and numerically taking into account saturation by its own spontaneous emission (OSE). The trends in changes of the amplitude and frequency characteristics of the nonlinear resonance associated with open and closed types of transitions for different polarizations of the waves that are introduced by self-saturation are established. Specific manifestations of the effect, including those related to magnetic coherence of levels, are revealed.

Optics and Spectroscopy•Oct 1, 2019•2 citations

Spectroscopic manifestations of saturation of optical transitions by spontaneous emission

Э. Г. Сапрыкин, S. N. Seleznev, V. A. Sorokin

Stimulated absorption of spontaneous emission of a gas-discharge plasma can cause a significant increase in the population of the emitting states, compared to their population determined by inelastic collisions and spontaneous decay from upper levels. By imposing a magnetic field, this self-saturation is reduced and its contribution to the level population can be identified. The magnetic-field-dependent changes in Doppler profiles due to radiative transitions caused by saturating spontaneous emission are analyzed in the case of absorption of a weak monochromatic wave.

Journal of Experimental and Theoretical Physics•Dec 1, 2003•4 citations

Spontaneous optical-coherence transfer and the nonlinear spectroscopy of gases

Sergey G. Rautian

Nonlinear-spectroscopy population effects due to spontaneous transfer of optical coherence are examined. The existence in the velocity distribution of new resonance elements of a specific form is established. The occurrence of these effects in the nonlinear resonance of a counterpropagating wave is analyzed.

Journal of Experimental and Theoretical Physics•Jan 1, 1999•5 citations

Эффекты насыщения и самонасыщения в спектроскопии однонаправленных волн на переходы между уровнями с полным моментом J=1

Э. Г. Сапрыкин, А.А. Черненко

AbstractNonlinear absorption of a probe field in a system of degenerate levels of an atom characterized by a total moment of J = 1 in unidirectional waves is studied analytically and numerically taking into account saturation by its own spontaneous emission (OSE). The trends in changes of the amplitude and frequency characteristics of the nonlinear resonance associated with open and closed types of transitions for different polarizations of the waves that are introduced by self-saturation are established. Specific manifestations of the effect, including those related to magnetic coherence of levels, are revealed.

Журнал технической физики•Jan 1, 2019•1 citation

Resonance shapes of the saturated absorption and magnetic scanning on transition with J = 1 - J = 2 in a spectroscopy of unidirectional waves

Э. Г. Сапрыкин, А. А. Черненко

Physical processes forming resonance spectra of the saturated absorption and magnetic scanning on transition with level moments J = 1-J = 2 in the field of unidirectional waves of arbitrary intensities are numerically studied. It is shown that the anomalies of nonlinear resonance spectra are determined by the character of wave polarizations and by the degree of openness of atomic transition, and the anomalies of the magnetic scanning spectra are due to the magnetic coherence of the lower state levels, and not to its transfer from the excited states, as previously thought.

AIP conference proceedings•Jan 1, 2019•0 citations

Probe-field spectroscopy under conditions of self-saturation

Sergey G. Rautian, Э. Г. Сапрыкин, А. А. Черненко

Nonlinear absorption of a probe field is analyzed taking into account intrinsic spontaneous radiation (the self-saturation effect). Systems of two and three nondegenerate levels, as well as a system of two levels with the angular momenta equal to unity, are considered. Changes produced by the self-saturation in the population, polarization, and nonlinear interference effects, as well as in the field splitting of lines, are determined. In certain situations, incoherent spontaneous radiation enhances the interference phenomena.

Optics and Spectroscopy•Mar 1, 2005•10 citations
Abstract Nonlinear absorption of a probe field in a system of degenerate levels of an atom characterized by a total moment of J = 1 in unidirectional waves is studied analytically and numerically taking into account saturation by its own spontaneous emission (OSE). The trends in changes of the amplitude and frequency characteristics of the nonlinear resonance associated with open and closed types of transitions for different polarizations of the waves that are introduced by self-saturation are established. Specific manifestations of the effect, including those related to magnetic coherence of levels, are revealed.
Stimulated absorption of spontaneous emission of a gas-discharge plasma can cause a significant increase in the population of the emitting states, compared to their population determined by inelastic collisions and spontaneous decay from upper levels. By imposing a magnetic field, this self-saturation is reduced and its contribution to the level population can be identified. The magnetic-field-dependent changes in Doppler profiles due to radiative transitions caused by saturating spontaneous emission are analyzed in the case of absorption of a weak monochromatic wave.
AbstractNonlinear absorption of a probe field in a system of degenerate levels of an atom characterized by a total moment of J = 1 in unidirectional waves is studied analytically and numerically taking into account saturation by its own spontaneous emission (OSE). The trends in changes of the amplitude and frequency characteristics of the nonlinear resonance associated with open and closed types of transitions for different polarizations of the waves that are introduced by self-saturation are established. Specific manifestations of the effect, including those related to magnetic coherence of levels, are revealed.
Physical processes forming resonance spectra of the saturated absorption and magnetic scanning on transition with level moments J = 1-J = 2 in the field of unidirectional waves of arbitrary intensities are numerically studied. It is shown that the anomalies of nonlinear resonance spectra are determined by the character of wave polarizations and by the degree of openness of atomic transition, and the anomalies of the magnetic scanning spectra are due to the magnetic coherence of the lower state levels, and not to its transfer from the excited states, as previously thought.
Nonlinear absorption of a probe field is analyzed taking into account intrinsic spontaneous radiation (the self-saturation effect). Systems of two and three nondegenerate levels, as well as a system of two levels with the angular momenta equal to unity, are considered. Changes produced by the self-saturation in the population, polarization, and nonlinear interference effects, as well as in the field splitting of lines, are determined. In certain situations, incoherent spontaneous radiation enhances the interference phenomena.